Read article - Continued coverage of research coauthored by Steven Woloshin, professor of medicine, community and family medicine, and of the Dartmouth Institute for Health Policy and Clinical Practice, and Lisa Schwartz, professor of medicine, community and family medicine, and of the Dartmouth Institute for Health Policy and Clinical Practice, that found that nearly $30 billion that health companies now spend on medical marketing each year, around 68 percent (or about $20 billion) goes to persuading doctors and other medical professionals—not consumers—of the benefits of prescription drugs. (Similar coverage in Philly.com.)